1) How are plants and animals similar in structure? How are they different? Plants and animals are similar because they both show the presence of cytoplasm, plasma membrane, endoplasmic reticulum (smooth and rough), mitochondria, vacuole, mitochondria, golgi apparatus, peroxisomes, microtubules/ microfilaments, nucleus, and flagella (present in some cells). They are different because Plant cells have centrioles or intermediate filaments. They also have a more square shape and contain chloroplasts
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prokaryotic and eukaryotic cells: Plasma membrane Cytosol Ribosomes Choose the chart below with two internal structures of prokaryotic cells and three from eukaryotic cells and describe their function in your own words. | |Cell Structures | | |Structure |Function | |Prokaryotic
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is the science of “life,” what exactly is life? We all recognize what life is, but it’s difficult to define. The characteristics of life: 1) -Complex, organized structure 2) -Response to stimuli - a change outside (or inside) leads to another change 3) -Homeostasis - the ability to maintain the structure and regulate the internal environment. 4) -Ability to acquire material and energy >The material and energy are often transformed< 5) -Growth 6) -Reproduction
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The Endomembrane System A system of interconnected membranes (also known as the cytomembrane system) that fills the cell interior and connects the cell boundary with the double membraned organelles - nucleus, plastids and mitochondria. The phospholipid bilayer forms the basis for both outer and internal membranes. Thus while the Plasma Membrane, the outer-most cell membrane is an integral component of the cell boundary, its numerous convoluted protrusions into the cell interior and its connectivity
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DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules
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a nuclear membrane and other membrane bound organelles. Their genetic material consists of a single molecule of singular DNA. Eukaryotes, such as plant and animal cells, have a nuclear membrane and other membrane bound organelles. Their genetic material consists of one or more linear strands of DNA. Eukaryotic cells have a nucleus, cytoplasm, and a plasma membrane surrounding the cell. The typical plant cell has in addition a cell wall, a rigid structure made up of cellulose that surrounds the plasma
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chloroplast are two organelles that are very important to organisms. Both provide energy and nourishment to the cell. While chloroplast is found in plant cells only, mitochondrion is found in both animal and plant cells. It is believed that these two organelles were once bacterial cells on their own, but then they were engulfed by other bacteria. This theory is called the Endosymbiotic Theory. This theory is proven by the fact that chloroplast and mitochondrion are the only organelles, within a cell,
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Content Outline TOPIC and Objectives CELL BIOLOGY • Apply the scientific method to creating hypotheses and experiments. • Recognize the fundamental concepts of chemistry in biology. • Describe the energy metabolism of cells. • Compare structures and functions of different cell types. Content outline 1. WHAT IS SCIENCE? a. Science comes from the Latin for “to know.” b. Based on inquiry 1) Discovery science 2) Hypothesis-driven science 3) Case studies 4) Scientists use the scientific
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Please do not plagiarize. Only use these study questions for study purposes, and to check your own work. Answers are NOT guaranteed to be correct. Biology 141, Spring 2012 Exam 1 Study Questions The questions on the first hour exam will be based on those given below. Questions on the exam will be in multiple choice form, but if you can answer the questions here, you will have no trouble with the exam. [Notes: 1. These questions are meant to provoke thought and study. Do not ask the instructors
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Biology 141, Fall 2012 Exam 1 Study Questions (rev. 083112) The questions on the first hour exam will be based on those given below. Questions on the exam will be in multiple choice form, but if you can answer the questions here, you will have no trouble with the exam. [Notes: 1. These questions are meant to provoke thought and study. Do not ask the instructors or the TAs to provide you with the answers. 2. Crossed out study questions will not be use as the basis for exam questions.] 1
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